chalcone

noun
chal·​cone
variants: or less commonly chalkone \ˈkalˌkōn \
plural -s

Definition of chalcone 

: a yellow crystalline ketone C6H5CHCHCOC6H5 made by the condensation of benzaldehyde and acetophenone also : any of various derivatives of this compound, several of which are plant pigments related to the flavones

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History and Etymology for chalcone

German chalkon, from chalk- chalc- + -on -one; from its use in producing reddish yellow dyestuffs

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